Liquid-vending machine



Dec. 29, 1925' w. D. AMBROSE v LIQUID VENDING MACHINE Filed Dec.

WITNESSES ATTORNEYS Nacogdoches and State -vented a new and Im inugl Machine, of whic pause a Patented Dec. 29, 1925 UNITED srAr-asfl wanna! nnmwm numbness, or zuooonocnas, TEXAS. A

mUm-vnnnme mounts.

a ueme 'neanecmm 18, 1928. serial- No. ceases.

To'alZ whom it may concern: a Be it known that I, WARREN D. AMBROSE,

a citizen of the United States, and a resi-' p f the s iaft 9 is rotated. The shaft 9 may be dent of Nacogdoches, in the county 0 of Texas, have inroved Liquid-Vendthe following is a clear, and exact description.

This invention relates to improvements in vending machines and has particular reference to a coin-control mechanism for liquid vending machines.

An object of the invention is to, rovide an improved mechanism capable 0 Operation with a pump such as used to dis ense gasol ne, oil and other liquids in pre etermined :quantities and which is controlled in such manner that a coin deposited into the mechanism is utilized to release an operat ing element forming a part of the ump so that said element ma be actuate to disredetermined; quantity of liquid fromsai pump.

The above and other objects will appear more clearly from the following detail description, when taken in connectlon with trates a drawing, which illusthe accompanyin embodiment of the inreferre ventive i ea, v I

In the drawing Figure 1 is a'side elevation of the coincontrol mechanism constructed in accord- I ance with the invention and showing the same applied to a reciprocatory pump rod; Fi re 2 is a section substantially on the line 2 of Figure l; and

Figures 3, fl: and 5 are detail views showing the various relative positions of the operating shaftior the pump and the latching means therefor during the rotation of sand shaft.

Referring more particularly to the accompanying' drawi'ng, the numeral 6 indi cates a frame the lower ends of which are secured in any preferred manner to a pump structure (not shown), the operation of which is controlled by a vertically reciprocating pump rod 7, in the form of a rac bar, having its upper end slidable in a suitable bearing formed in the cross-piece 8 o the frame 6, the upward movement of the rod 7 being utilized, as usual, to dispense the liquid from a suitable tank by the action of the ump. Suitably journaled m the s de menibers of the frame 6 is a rotatable operating shaft 9 having a handle 10 at one end her 14 pivoted at one end, at 15,

1; slot until'the same engages r shortered ge thereof, at which timed: f tion of said 'coi'n' projects beyond the and a gearll carried intermediate its ends which is engageable with the rack of the um rod to raise and lower the same when motor driven, if desired.

Depending from the eross-piece 8 of theframe 6 is a coin chute 12 forming a art of the coin-control mechanism, which 0 ute The ends of the slot 13'are diagonally v arranged so that one longitudinal edge of the slot is bf greater len th than the other,

as indicated in dotted lines in Figure 1, the latter ed e of said slot-being of slightly less length t an the diameter of a coin to be deposited into the mechanism 'so that a portion of said. coin, when in o erative position will project beyond the s aft 9. Said shaft is normally held a ainst rotation in one direction by means 0 a latching memwith the lower end of an angular supporting member 16, the opposite end of which is connected vto the cross-piece 8 of the frame 6. The end 17 of the latch 14.- ,is bent laterally to forma hook portion the free extremity of which is engageable in a notch 18 formed in the periphery of the shaft 9 adjacent the slot 13 therein and when thus engaged permit of rotation of said shaft in the opposite direction so thatthe pump rod 7 may.

be lowered to its normal position after having been elevated to dispense a quantity 'ef liquid. A leaf spring 19 having one end secured to the support 16 is utilized to yieldably maintain the latching extremity of the latch 14 in engagementwith the shaft. 9.

With the parts in'the position shown. n

in 20 is inserted into the up- Figure 2;the

e ute'12and is directed thereper endof the 5 into the longer edge of the. slot 13 in the shaft 9. The coin p through the 9; The handle '10: may than rotated in a clockwise direction, as viewediin-Flgure 2, to rotate the shaft 9. A slight rotation of said shaft causes'the com 20 to engage the latch 14, as shown inF" I 3, thus swinging said latch upwuj about iii the ends of the pivot 15 so that continued rotation of the shaft will carry the notch 18 therein beyond the latching extremity of said latch. As the shaft reaches the position shown'in Figure 4:, pressure of the spring 19 against the latch will again force said latch toward its normal position and this movement is utilized to eject the coin 20 from the slot 13 which has now reached an inclined position with respect to the horizontal with the longer edge of the slot in a plane below that of the other edge thereof, thus permitting the disengagement of the coin from the shaft. As the coin is ejected from the shaft the same falls into a coin box 21 carried by the frame 6.

A clutch device is associated with Elie shaft 9 and includes a clutch member 22 carried by the gear 11 and a second clutch member 23 cooperating with the clutch member 22 and mounted for longitudinal movement upon the shaft 9. The clutch member 23 is provided with a diagonally extend ing slot 24 into which projects a pin 25 carried by the shaft 9 so that as the shaft is rotated in the proper direction the pin 25 will cause a longitudinal movement of the clutch member 23 into cooperative relation with the member 22, thus providing a positive drive between the shaft 9 and gear 11 to elevate the pump rod 7. l-Vhen the shaft 9 has made substantially a complete revolution the free end of the latch 14 will engage in the notch 1-5 of the shaft and thus prevent any further rotary movement of the latter. The pump mechanism may be so regulated that upon acomplete revolution of the shaft 9 the proper quantity of liquid will be dispensed from the pump. The

clutch member 23 ismounted for rotation on the shaft 9 between the upper free ends of a bracket 26 secured to the frame 6 having an inner lining 27 of leather or other suitable material.

After the pump rod 7 has been elevated to the limit of its upward movement by the operation of the shaft 9 the handle 10 may be rotated in an opposite direction to lower the rod 7. \Vhen moving in the latter direction the clutch member 23 will restore to its normal position out of cooperative relation with the member 22. The rotation of the handle in said opposite (lirectionmay he continued until the rod 7 has been lowered to its normal position whereupon the parts are in position for another operation. Should the slot 13 for any reason fail to register exactly with the lower end of the chute 12 when a coin is deposited into said chute, it is obvious that a slight movement of said shaft will cause said slot to register with the chute so that the coin will drop into proper position in engagement with said shaft.

\Vhat is claimed is:

In a coin controlled mechanism, a reciprocating element, a shaft having a slot for' holding a coin partly projecting therethrough and notch adjacent the slot, means for operating the element from the shaft,

means for feeding a coin into the slot of the shaft, and a pivoted and spring pressed member having at its free end a hook extending over the shaft and having its extremity engaging the notch of the shaft to prevent it from turning in one direction but permitting it to turn in the other direction, the said member engaging the portion of the coin projecting through said slot, upon the rotation of the shaft to first disengage its hook from the notch of the shaft and then to be expelled thereby from the slot.

' WARREN DELAWARE AMBROSE. 

